| | | | | | 2017 4 7 | | | | | | | | | | | | | | | | | | | | | | | | | | 20 | | | | | | | | | | 1000 | 100% | | | | | | 500 | 1000 | | | 20 | | | 90% | | | | | | 90% | | | 300 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1% ~ 2% | | | | | | | | | | | 2017 4 7 | | | | |